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    Christopher J. McDougle, MDChristopher J. McDougle, MDAlbert E. Sterne Professor andAlbert E. Sterne Professor and

    ChairmanChairmanDepartment of PsychiatryDepartment of Psychiatry

    Indiana University School of MedicineIndiana University School of Medicine

    Psychopharmacology of AutismPsychopharmacology of Autism

    2

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    Potential Targets ofPotential Targets ofPharmacotherapyPharmacotherapy

    1.1. Motor hyperactivity, inattentionMotor hyperactivity, inattention

    2.2. Repetitive behaviorRepetitive behavior

    3.3. Aggression, selfAggression, self--injury, propertyinjury, propertydestructiondestruction

    4.4. Impaired social relatednessImpaired social relatedness

    4

    Potential Targets ofPotential Targets ofPharmacotherapyPharmacotherapy

    1.1. Motor hyperactivity, inattentionMotor hyperactivity, inattention

    2.2. Repetitive behaviorRepetitive behavior

    3.3. Aggression, selfAggression, self--injury, propertyinjury, propertydestructiondestruction

    4.4. Impaired social relatednessImpaired social relatedness

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    Stimulants in AutismStimulants in Autism Historical data and beliefs negativeHistorical data and beliefs negative

    Small studies support use of MPH inSmall studies support use of MPH inautismautism1,21,2

    Anecdotal reports of a high frequency ofAnecdotal reports of a high frequency ofadverse drug effects includingadverse drug effects includingstereotypies and social withdrawalstereotypies and social withdrawal

    MPH = methylphenidate.MPH = methylphenidate.11Quintana H et al.Quintana H et al. J Autism Dev DisordJ Autism Dev Disord. 1995;25:283. 1995;25:283--294.294.22Handen BL et al.Handen BL et al. J Autism Dev DisordJ Autism Dev Disord. 2000;30:245. 2000;30:245--255.255. 6

    RUPP Autism Network Study of MPH inRUPP Autism Network Study of MPH in

    Children With PDD + HyperactivityChildren With PDD + Hyperactivity

    72 Children (age, 572 Children (age, 514 y) with autism,14 y) with autism,Aspergers Disorder, or PDD NOS andAspergers Disorder, or PDD NOS andsignificant ADHD symptomssignificant ADHD symptoms

    Study designStudy design

    77--day testday test--dose perioddose period

    44--week doubleweek double--blind trial of 3 dose levelsblind trial of 3 dose levels(0.125, 0.25, 0.50 mg/kg/dose) of MPH TID(0.125, 0.25, 0.50 mg/kg/dose) of MPH TIDand placebo in random orderand placebo in random order

    PDDNOS = pervasive developmental disorder not otherwise specified.PDDNOS = pervasive developmental disorder not otherwise specified.

    ADHD = attention deficit/hyperactivity disorder.ADHD = attention deficit/hyperactivity disorder.

    RUPP Autism Network.RUPP Autism Network. Arch Gen PsychiatryArch Gen Psychiatry2005; 62:12662005; 62:1266--12741274..

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    TestTest--Dose PhaseDose Phase 6 out of 72 subjects were unable to6 out of 72 subjects were unable to

    toleratetolerate2 dose levels of MPH and were dropped2 dose levels of MPH and were droppedfrom the studyfrom the study

    16 out of the remaining 66 subjects had16 out of the remaining 66 subjects hadintolerable adverse effects at the highestintolerable adverse effects at the highestdose of MPH; entered modified crossoverdose of MPH; entered modified crossoverphasephase

    Irritability was the most common reasonIrritability was the most common reasonfor intolerabilityfor intolerability

    RUPP Autism Network.RUPP Autism Network. Arch Gen PsychiatryArch Gen Psychiatry2005; 62:12662005; 62:1266--1274.1274. 8

    Crossover PhaseCrossover Phase

    58/66 subjects completed the crossover58/66 subjects completed the crossoverphasephase

    7 subjects dropped out due to intolerable7 subjects dropped out due to intolerableadverse effectsadverse effects

    There was a statistically significant mainThere was a statistically significant maineffect of dose of MPH on the ABCeffect of dose of MPH on the ABCHyperactivity subscale score as rated byHyperactivity subscale score as rated byboth teacher (Primary Outcome Measure; Pboth teacher (Primary Outcome Measure; P=.009) and parent (P

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    Treating Hyperactivity:Treating Hyperactivity:Other MedicationsOther Medications

    Clonidine efficacious in 2 small placeboClonidine efficacious in 2 small placebo--controlled trialscontrolled trials1,21,2

    OpenOpen--label guanfacine in RUPP MPHlabel guanfacine in RUPP MPHnonresponders is positive, suggesting thatnonresponders is positive, suggesting thatguanfacine may be an alternativeguanfacine may be an alternative33

    1Jaselskis CA et al. J Clin Psychopharmacol. 1992;12:322-327.2Fankhauser MP et al. J Clin Psychiatry. 1992;53:77-82.3Scahill L et al. J Child Adolesc Psychopharmacol. 2006;16(5):589-598.

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    Atomoxetine inAtomoxetine inHigherHigher--Functioning PDDFunctioning PDD

    Prospective openProspective open--label study in 16 druglabel study in 16 drug--free children (age, 6free children (age, 614 y) with PDDs14 y) with PDDsand nonverbal IQ of 70and nonverbal IQ of 70

    Significant ADHD symptomsSignificant ADHD symptoms

    Atomoxetine dosing: 0.5 mg/kg/d x 1 wk,Atomoxetine dosing: 0.5 mg/kg/d x 1 wk,then 0.8 mg/kg/d x 1 wk, then 1.2then 0.8 mg/kg/d x 1 wk, then 1.2mg/kg/d. Dose increased to 1.4 mg/kg/dmg/kg/d. Dose increased to 1.4 mg/kg/dat Week 4 for nonrespondersat Week 4 for nonresponders

    Mean dose: 1.2Mean dose: 1.2 0.3 mg/kg/d0.3 mg/kg/dPosey DJ et al. J Child Adolesc Psychopharmacol, 2006; 16(5):5992006; 16(5):599--610610.

    15

    Atomoxetine in PDD WithAtomoxetine in PDD WithADHD SymptomsADHD Symptoms

    12/16 (75%)12/16 (75%) muchmuchoror very much improvedvery much improvedon the CGI scaleon the CGI scale

    2/16 (13%)2/16 (13%) much worsemuch worsedue to irritabilitydue to irritability

    ConclusionsConclusions

    Encouraging resultsEncouraging results

    Possible alternative to stimulants andPossible alternative to stimulants and22--adrenergic agonistsadrenergic agonists

    PlaceboPlacebo--controlled studies neededcontrolled studies needed

    CGI = Clinical Global Impressions.

    Posey DJ et al. J Child Adolesc Psychopharmacol, 2006; 16(5):5992006; 16(5):599--610610. 16

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    Potential Targets ofPotential Targets of

    PharmacotherapyPharmacotherapy

    1.1. Motor hyperactivity, inattentionMotor hyperactivity, inattention

    2.2. Repetitive behaviorRepetitive behavior

    3.3. Aggression, selfAggression, self--injury, propertyinjury, propertydestructiondestruction

    4.4. Impaired social relatednessImpaired social relatedness

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    Serotonin ReuptakeSerotonin Reuptake

    Inhibitors (SRIs)Inhibitors (SRIs)

    Rationale for studying SRIs in autismRationale for studying SRIs in autism

    Similarities to obsessiveSimilarities to obsessive--compulsive disordercompulsive disorder

    Serotonin abnormalities in autismSerotonin abnormalities in autism

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    SRIs in AutismSRIs in Autism Clomipramine better than placebo andClomipramine better than placebo and

    desipramine in children and young adultsdesipramine in children and young adultswith autismwith autism11

    Fluvoxamine better than placebo inFluvoxamine better than placebo inADULTSADULTSwith autismwith autism22

    Fluvoxamine no better than placebo andFluvoxamine no better than placebo andpoorly tolerated inpoorly tolerated in CHILDRENCHILDREN with PDDswith PDDs33

    Fluoxetine better than placebo and welltolerated in children with PDDs4

    1Gordon CT et al.Arch Gen Psychiatry. 1993;50:441-447.2McDougle CJ et al.Arch Gen Psychiatry. 1996;53:1001-1008.3McDougle CJ. Unpublished data.4Hollander E et al. Neuropsychopharmacology. 2005; 30:582-589. 20

    Citalopram in PDDsCitalopram in PDDs

    149 children (9.4149 children (9.4 3.1 years) with PDDs and significant3.1 years) with PDDs and significant

    repetitive behaviorrepetitive behavior 1212--week, doubleweek, double--blind, placeboblind, placebo--controlled, parallel groupscontrolled, parallel groups

    designdesign

    Citalopram started at 2.5 mg/day; max dose = 20 mg/day;Citalopram started at 2.5 mg/day; max dose = 20 mg/day;(mean dose = 16.5(mean dose = 16.5 6.5 mg/day)6.5 mg/day)

    No drugNo drug--placebo difference in response on CGIplacebo difference in response on CGI--I or in scoreI or in scorereduction on CYreduction on CY--BOCSBOCS--PDDPDD

    Significantly more adverse events with citalopram thanSignificantly more adverse events with citalopram thanplacebo: increased energy level, impulsiveness, decreasedplacebo: increased energy level, impulsiveness, decreasedconcentration, hyperactivity, stereotypy, diarrhea, insomnia,concentration, hyperactivity, stereotypy, diarrhea, insomnia,and dry skin or pruritusand dry skin or pruritus

    King BH et al. Arch Gen Psychiatry. 2009; 66(6):583-590.

    21 22

    Potential Targets ofPotential Targets ofPharmacotherapyPharmacotherapy

    1.1. Motor hyperactivity, inattentionMotor hyperactivity, inattention

    2.2. Repetitive behaviorRepetitive behavior

    3.3. Aggression, selfAggression, self--injury, propertyinjury, propertydestructiondestruction

    4.4. Impaired social relatednessImpaired social relatedness

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    Typical AntipsychoticsTypical Antipsychotics

    Several RCTs of haloperidol associatedSeveral RCTs of haloperidol associatedwith improvement in a variety ofwith improvement in a variety ofsymptoms including aggression andsymptoms including aggression andirritabilityirritability

    Adverse effects: dystonia, dyskinesiasAdverse effects: dystonia, dyskinesias

    RCT = randomized clinical trial.

    Anderson LT et al.Am J Psychiatry. 1984;141:1195-1202.

    Campbell M et al. J Am Acad Child Adolesc Psychiatry. 1997;36:835-843.24

    Atypical AntipsychoticsAtypical Antipsychotics Serotonin antagonism in addition to dopamineSerotonin antagonism in addition to dopamine

    antagonismantagonism

    Lower risk of dyskinesiasLower risk of dyskinesias

    Individual drugs includeIndividual drugs include

    ClozapineClozapine

    RisperidoneRisperidone

    OlanzapineOlanzapine

    QuetiapineQuetiapine

    ZiprasidoneZiprasidone

    AripiprazoleAripiprazole

    PaliperidonePaliperidone

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    ClozapineClozapine

    Case reports onlyCase reports only

    Can lower the seizure thresholdCan lower the seizure threshold

    Risk of agranulocytosisRisk of agranulocytosis

    Frequent blood draws necessaryFrequent blood draws necessary

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    Risperidone in Children WithRisperidone in Children WithAutism and Serious BehavioralAutism and Serious Behavioral

    ProblemsProblemsRUPP Autism NetworkRUPP Autism Network

    Indiana University (Christopher J. McDougle, MD)Indiana University (Christopher J. McDougle, MD)

    KennedyKennedy--Kreiger, Johns Hopkins (Elaine Tierney, MD)Kreiger, Johns Hopkins (Elaine Tierney, MD)

    Ohio State University (Michael G. Aman, PhD; L. EugeneOhio State University (Michael G. Aman, PhD; L. EugeneArnold, MD)Arnold, MD)

    Yale Child Study Center (Larry Scahill, MSN, PhD)Yale Child Study Center (Larry Scahill, MSN, PhD)

    UCLA (James T. McCracken, MD)UCLA (James T. McCracken, MD)

    NIMH (Benedetto Vitiello, MD)NIMH (Benedetto Vitiello, MD)

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    Acute Risperidone Trial: RUPPAcute Risperidone Trial: RUPPin Children and Adolescentsin Children and Adolescents

    101 subjects (82 boys, 19 girls)101 subjects (82 boys, 19 girls)

    Diagnosis: autistic disorderDiagnosis: autistic disorder

    Significant irritability (ABC IrritabilitySignificant irritability (ABC Irritability 18)18)

    8 weeks, double8 weeks, double--blind, placeboblind, placebo--controlled,controlled,

    parallel groupsparallel groups Mean age = 8.8Mean age = 8.8 2.7 y; range = 52.7 y; range = 517 y17 y

    Risperidone 1.8 mg/d; range = 0.5Risperidone 1.8 mg/d; range = 0.53.5 mg/d3.5 mg/d

    RUPP Autism Network. N Engl J Med. 2002;347:314-321. 28

    Acute Risperidone Trial: RUPPAcute Risperidone Trial: RUPP

    12%

    69%

    0

    20

    40

    60

    80

    100

    Risperidone Placebo

    Percent

    Responding

    Response criteria: 25% improvement in the ABC-I score, and arating of much improved or very much improved on the CGI-I

    (34/49)(34/49)

    (6/52)(6/52)

    PP< 0.001< 0.001

    ABC-I = Aberrant Behavior ChecklistIrritability.

    CGI-I = Clinical Global ImpressionsImprovement.

    RUPP Autism Network. N Engl J Med. 2002;347:314-321.

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    Acute Risperidone Trial: RUPPAcute Risperidone Trial: RUPPAdverse effectsAdverse effects

    Mean increase in weightMean increase in weight

    Risperidone, 2.7Risperidone, 2.7 2.9 kg2.9 kg

    Placebo, 0.8Placebo, 0.8 2.2 kg;2.2 kg; PP< 0.001< 0.001

    Increased appetite, fatigue, drowsiness,Increased appetite, fatigue, drowsiness,dizziness, and drooling were more commondizziness, and drooling were more commonin the risperidone group; allin the risperidone group; all PP< 0.05< 0.05

    AIMS and SimpsonAIMS and Simpson--Angus: no EPSAngus: no EPS

    AIMS = Abnormal Involuntary Movement Scale.

    EPS = extrapyramidal symptoms.

    RUPP Autism Network. N Engl J Med. 2002;347:314-321.30

    Baseline and EndpointBaseline and Endpoint

    ABC Scores by GroupABC Scores by GroupRisperidoneRisperidone PlaceboPlacebo

    ABCABC BaselineBaseline EndpointEndpoint BaselineBaseline EndpointEndpoint

    IrritabilityIrritabilityPP< 0.001< 0.001

    26.2 (7.9)26.2 (7.9) 11.3 (7.4)11.3 (7.4) 25.5 (6.6)25.5 (6.6) 21.9 (9.5)21.9 (9.5)

    SocialSocialWithdrawalWithdrawalPP= 0.03/NS= 0.03/NS

    16.4 (8.2)16.4 (8.2) 8.9 (6.4)8.9 (6.4) 16.1 (8.7)16.1 (8.7) 12.0 (8.3)12.0 (8.3)

    StereotypyStereotypyPP< 0.001< 0.001

    10.6 (4.9)10.6 (4.9) 5.8 (4.6)5.8 (4.6) 9.0 (4.4)9.0 (4.4) 7.3 (4.8)7.3 (4.8)

    HyperactivityHyperactivityPP< 0.001< 0.001

    31.8 (9.6)31.8 (9.6) 17.0 (9.7)17.0 (9.7) 32.3 (8.5)32.3 (8.5) 27.6 (10.6)27.6 (10.6)

    InappropriateInappropriateSpeechSpeech

    PP= 0.03/NS= 0.03/NS

    4.8 (4.1)4.8 (4.1) 3.0 (3.1)3.0 (3.1) 6.5 (3.6)6.5 (3.6) 5.9 (3.8)5.9 (3.8)

    RUPP Autism Network. N Engl J Med. 2002;347:314-321.

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    RUPP RisperidoneRUPP Risperidone Parent Management TrainingParent Management Training

    TrialTrial 124 children (4 to 13 years) with PDDs and124 children (4 to 13 years) with PDDs and

    significant irritabilitysignificant irritability

    2424--week, threeweek, three--site, randomized, parallelsite, randomized, parallelgroups trialgroups trial

    Children randomized 3:2 to COMB (n=75) orChildren randomized 3:2 to COMB (n=75) orMED (n=49)MED (n=49)

    Parents in COMB received a mean of 10.9Parents in COMB received a mean of 10.9PMT sessionsPMT sessions

    RUPP Autism Network. J Am Acad Child Adolesc Psychiatry. 2009;48(2):1143-1154.

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    RUPP RisperidoneRUPP Risperidone Parent Management TrainingParent Management Training

    TrialTrial

    Primary Outcome Measure (Home SituationsPrimary Outcome Measure (Home SituationsQuestionnaire [HSQ]); COMB > MED (P=.006)Questionnaire [HSQ]); COMB > MED (P=.006)

    COMB > MED on ABC Irritability (P=.01),COMB > MED on ABC Irritability (P=.01),Stereotypic Behavior (P=.04), andStereotypic Behavior (P=.04), andHyperactivity/Noncompliance (P=.04)Hyperactivity/Noncompliance (P=.04)

    Final Risperidone dose for MED (2.26 mg/day) vs.Final Risperidone dose for MED (2.26 mg/day) vs.COMB (1.98 mg/day) (P=.04)COMB (1.98 mg/day) (P=.04)

    ABC = Aberrant Behavior Checklist.

    RUPP Autism Network. J Am Acad Child Adolesc Psychiatry. 2009;48(2):1143-1154.

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    Olanzapine vs. HaloperidolOlanzapine vs. Haloperidol

    12 children with autism (7.812 children with autism (7.8 2.1 y)2.1 y)

    66--week openweek open--label, parallel groupslabel, parallel groups

    Olanzapine 7.9Olanzapine 7.9 2.5 mg/d2.5 mg/d

    Haloperidol 1.4Haloperidol 1.4 0.7 mg/d0.7 mg/d

    Response: Olanzapine 5/6 Haloperidol 3/6Response: Olanzapine 5/6 Haloperidol 3/6

    Weight Gain:Weight Gain:Olanzapine 9.0Olanzapine 9.0 3.5 lbs; range 5.93.5 lbs; range 5.9 15.8 lbs15.8 lbs

    Haloperidol 3.2Haloperidol 3.2 4.9 lbs; range4.9 lbs; range -- 5.55.5 8.8 lbs8.8 lbs

    Malone RP et al. J Am Acad Child Adolesc Psychiatry. 2001;40:887-894.

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    OlanzapineOlanzapine DoubleDouble--Blind,Blind,

    Placebo Controlled StudyPlacebo Controlled Study 11 children with pervasive developmental11 children with pervasive developmental

    disorders (9 y)disorders (9 y)

    88--week, doubleweek, double--blind, placeboblind, placebo--controlledcontrolled

    Olanzapine 10Olanzapine 10 2.04 mg/d2.04 mg/d

    Response: Olanzapine 3/6 Placebo 1/5Response: Olanzapine 3/6 Placebo 1/5

    Weight Gain: Olanzapine 7.5Weight Gain: Olanzapine 7.5 4.8 lbs4.8 lbs

    Placebo 1.5Placebo 1.5 1.5 lbs1.5 lbs

    Hollander E et al. J Child Adolesc Psychopharmacol. 2006;16(5):541-548.

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    QuetiapineQuetiapine

    Four openFour open--label studies:label studies:

    1.1. Age range 6Age range 6--15 y, Dosage range 10015 y, Dosage range 100--350350

    mg/d, Response 2/6 (Martin et al. 1999)mg/d, Response 2/6 (Martin et al. 1999)

    2.2. Age range 10Age range 10--17 y, Dosage range 10017 y, Dosage range 100--

    450 mg/d, Response 2/9 (Findling et al.450 mg/d, Response 2/9 (Findling et al.

    2004)2004)

    3.3. Age range 5Age range 5--28 y, Dosage range 2528 y, Dosage range 25--600600

    mg/d, Response 8/20 (Corson et al. 2004)mg/d, Response 8/20 (Corson et al. 2004)

    4.4. Age range 7Age range 7--17 y, Dosage range 26517 y, Dosage range 265--689689

    mg/d, Response 6/10 (Hardan & Handenmg/d, Response 6/10 (Hardan & Handen

    2005)2005)

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    ZiprasidoneZiprasidone Retrospective case series, 14.15Retrospective case series, 14.15 8.298.29

    wkwk

    12 subjects12 subjects

    Mean age = 11.62Mean age = 11.62 4.38 y; range = 8 to4.38 y; range = 8 to20 y20 y

    Mean dose = 59.23Mean dose = 59.23 34.76 mg/d;34.76 mg/d;range = 20range = 20--120 mg/d120 mg/d

    Response: 6/12 (50%) on CGIResponse: 6/12 (50%) on CGI--II

    No significant weight gainNo significant weight gain

    McDougle CJ et al. J Am Acad Child Adolesc Psychiatry. 2002;41:921-927.38

    ZiprasidoneZiprasidone 66--week prospective, openweek prospective, open--label studylabel study

    12 subjects12 subjects

    Mean age = 14.5Mean age = 14.5 1.8 y; range = 12 to 18 y1.8 y; range = 12 to 18 y

    Mean dose = 98.3Mean dose = 98.3 40.4 mg/d; range = 20 to 16040.4 mg/d; range = 20 to 160

    mg/dmg/d

    Response: 9/12 (75%) on Clinician CGIResponse: 9/12 (75%) on Clinician CGI--II

    No significant weight gainNo significant weight gain

    QTQTcc increased a mean of 14.7 msec; none > 448increased a mean of 14.7 msec; none > 448msecmsec

    Malone et al. J Child Adolesc Psychopharmacol. 2007;17:779-790.

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    Aripiprazole in AspergersAripiprazole in AspergersDisorder and PDD NOSDisorder and PDD NOS

    1414--week prospective, openweek prospective, open--label studylabel study

    25 subjects (6 female, 19 male; age =25 subjects (6 female, 19 male; age =8.6 y, range = 58.6 y, range = 5--17 y)17 y)

    IQ = 82, range = 50IQ = 82, range = 50--132132

    Target Symptoms = Irritability,Target Symptoms = Irritability,aggression, selfaggression, self--injury (ABC Irritabilityinjury (ABC Irritabilitysubscale scoresubscale score 18)18)

    Dose 7.8 mg/d, range 2.5Dose 7.8 mg/d, range 2.5 15 mg/d15 mg/dStigler et al. J Child Adolesc Psychopharmacol. 2009; 19(3):265-274.

    40

    Aripiprazole in AspergersAripiprazole in AspergersDisorder and PDD NOSDisorder and PDD NOS

    Response:Response: CGICGI--I = Much Improved or Very MuchI = Much Improved or Very MuchImproved and aImproved and a 25% improvement in ABC 25% improvement in ABCIrritability subscale score 21/25 (84%)Irritability subscale score 21/25 (84%)

    ABC Irritability Subscale Score:ABC Irritability Subscale Score:

    Baseline = 28, Endpoint = 8.8Baseline = 28, Endpoint = 8.8

    Adverse Effects:Adverse Effects:

    Mild tiredness = 16, Moderate tiredness = 1Mild tiredness = 16, Moderate tiredness = 1

    Mild EPS = 6Mild EPS = 6

    Weight gain = 19, Mean = 2.3 lbs, range =Weight gain = 19, Mean = 2.3 lbs, range = --3.33.3 7.7 lbs7.7 lbs

    Stigler et al. J Child Adolesc Psychopharmacol. 2009; 19(3):265-274.

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    Aripiprazole in AutismAripiprazole in Autism

    Flexible Dose StudyFlexible Dose Study 98 children and adolescents with autism (age 698 children and adolescents with autism (age 6--17 years)17 years)

    with significant irritabilitywith significant irritability

    88--week, doubleweek, double--blind, placeboblind, placebo--controlled, parallel groups,controlled, parallel groups,flexiblyflexibly--dosed (2dosed (2--15 mg/day) trial15 mg/day) trial

    Aripiprazole (8.5 mg/day) more efficacious than placebo onAripiprazole (8.5 mg/day) more efficacious than placebo onAberrant Behavior Checklist Irritability subscale (P

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    Potential Targets ofPotential Targets ofPharmacotherapyPharmacotherapy

    1.1. Motor hyperactivity, inattentionMotor hyperactivity, inattention

    2.2. Repetitive behaviorRepetitive behavior

    3.3. Aggression, selfAggression, self--injury, propertyinjury, propertydestructiondestruction

    4.4. Impaired social relatednessImpaired social relatedness

    44

    Medications Studied forMedications Studied forSocial Impairment in AutismSocial Impairment in Autism

    Not effectiveNot effective

    FenfluramineFenfluramine

    NaltrexoneNaltrexone

    LamotrigineLamotrigine

    AmantadineAmantadine

    RisperidoneRisperidone

    FluoxetineFluoxetine

    CitalopramCitalopram

    45

    DD--Cycloserine in Children withCycloserine in Children withAutismAutism

    80 chilren (6.580 chilren (6.5 2.8 years; range 32.8 years; range 3--12 years) with12 years) withautistic disorder and significant social withdrawalautistic disorder and significant social withdrawal

    88--week, doubleweek, double--blind, placeboblind, placebo--controlled, parallelcontrolled, parallelgroups designgroups design

    DD--cycloserine 1.7 mg/kg/day divided twice daily orcycloserine 1.7 mg/kg/day divided twice daily orplaceboplacebo

    No drugNo drug--placebo difference on the CGIplacebo difference on the CGI--I, ABC SocialI, ABC SocialWithdrawal subscale, or Social Responsiveness ScaleWithdrawal subscale, or Social Responsiveness Scale

    DD--cycloserine generally wellcycloserine generally well--toleratedtolerated

    Posey DJ et al.AACAP Poster 3.53, 2008.46

    Future DirectionsFuture Directions

    Motor Hyperactivity/InattentionMotor Hyperactivity/Inattention

    -- DoubleDouble--blind, placeboblind, placebo--controlled trial of atomoxetinecontrolled trial of atomoxetine

    -- DoubleDouble--blind, placeboblind, placebo--controlled trial of guanfacinecontrolled trial of guanfacine

    Repetitive BehaviorRepetitive Behavior

    -- Pilot studies of riluzolePilot studies of riluzole

    Aggression, SelfAggression, Self--Injury, Property DestructionInjury, Property Destruction

    -- Pilot studies of paliperidonePilot studies of paliperidone

    Impaired social RelatednessImpaired social Relatedness- Controlled trial of D-cycloserine + Social Skills Training

    - Double-blind, placebo-controlled trial of memantine

    - Pilot studies of intranasal oxytocin

    47 48

    Christian Sarkine AutismChristian Sarkine Autism

    Treatment CenterTreatment Center Christopher J. McDougle, MDChristopher J. McDougle, MD David J. Posey, MDDavid J. Posey, MD Naomi B. Swiezy, PhDNaomi B. Swiezy, PhD Kimberly A. Stigler, MDKimberly A. Stigler, MD Craig Erickson, MDCraig Erickson, MD Noha Minshawi, PhDNoha Minshawi, PhD Stacie Pozdol, MSStacie Pozdol, MS Doug Gaebler, MSWDoug Gaebler, MSW Arlene Kohn, BAArlene Kohn, BA Elizabeth Kiefer, MAElizabeth Kiefer, MA Lauren MathieuLauren Mathieu--Frasier, MSFrasier, MS Jennifer Mullett, RN, BC CCRPJennifer Mullett, RN, BC CCRP Jon Diener, BSJon Diener, BS Iryna Ashby, BSIryna Ashby, BS Melodie Rose, BAMelodie Rose, BA

    www.iupui.edu/~psycdept/autism/index.htm

    (317) 274-8162